含锗烟尘的硫酸浸出工艺研究  

Study on Leaching Process of Germanium Fly Ash with Sulfuric Acid

作　　者：郑东升[1] 肖松[1] 梁杰[2] 

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]贵州理工学院,贵州贵阳550003

出　　处：《云南化工》2012年第6期1-5,共5页Yunnan Chemical Technology

基　　金：云南省科技厅应用基础研究计划项目(2011FZ073)

摘　　要：为简化含锗烟尘浸出过程,提出一段硫酸浸出工艺。浸出工艺条件为:浸出温度90℃,初始硫酸质量浓度120 g/L,液固比8 mL/g,浸出时间2.5 h,搅拌转速120 r/min。在该条件下,锌、锗浸出率分别为99.1%和87.61%左右,最终硫酸质量浓度约34.80 g/L。去除不溶性锗后,锗浸出率可达到97.21%。To simplify the leaching process of germanium fly ash, the one stage sulfuric acid leaching process was studied. The result shows the leaching processing as following： leaching temperature 90℃ initial sulfuric acid concentration 120 g/L, ratio of hquid to solid 5 mL/g, leaching time 2 h, and mixing speed 120 r/min. Under these conditions, the leaching rates of Zn and Ge were about 99.1% and 87.61%, and the concentration of end acid is about 34.80 g/L, and by removal of insoluble germanium, the leaching rate of Germanium could be about 97.21%. Zinc and Germanium can be effectively leached from Germanium fly ash in the leaching process, and the leaching technique is effective and stable.

关 键 词：烟尘 浸出 锗 硫酸 

分 类 号：TF09[冶金工程—冶金物理化学] TF111.31